Disk not ejected properly
Keep getting this same message every 8 secs or so to say that I have to 'eject NAME OF USB PEN before disconnecting or turning it off' even though I have done everything properly.
iMac (24-inch, M1, 2021, 2 ports)
Question marked as
Sounds like the USB pin drive (flash drive) is bad or has a bad connection.
Try ejecting and unplugging the flash drive, then plug it into a different USB port.
If you are using a USB hub, test the flash drive plugged directly into the iMac.
Replace or test a different flash drive, if that one is still causing a problem.